taxonID	type	description	language	source
6B4E344DFFACFFFFFF23FE69FA34FAD2.taxon	description	(Fig. 1 – 8)	en	Ślipiński, Adam (2020): A new species of Euxestoxenus Arrow (Coleoptera: Euxestidae) from Thailand. Insecta Mundi 2020 (838): 1-4, DOI: http://doi.org/10.5281/zenodo.5353899
6B4E344DFFACFFFFFF23FE69FA34FAD2.taxon	diagnosis	Diagnosis. This species can be easily separated from the only known Oriental species, E. striatus in having 10 - segmented antenna and the dorsal surfaces devoid of striae and setae. Of the three African glabrous species, E. thomasi is most similar to E. nudus John but differs by a shorter and more compact antennal segments, rounded antennal club and strongly flattened and expanded femora and tibiae.	en	Ślipiński, Adam (2020): A new species of Euxestoxenus Arrow (Coleoptera: Euxestidae) from Thailand. Insecta Mundi 2020 (838): 1-4, DOI: http://doi.org/10.5281/zenodo.5353899
6B4E344DFFACFFFFFF23FE69FA34FAD2.taxon	description	Description. Length 1.2 – 1.4 mm; body elongate oval (Fig. 1), 1.4 – 1.5 times longer than wide, moderately convex; colour light brown to dark brown; dorsal surfaces smooth and shiny; vestiture apparently absent, very short hairs barely traceable under 100 × magnification. Eyes somewhat reduced, coarsely facetted (Fig 2). Clypeus coarsely punctate and setose; punctures about 0.5 times as large as eye facets and 1 diameter apart; interspaces smooth and shiny. Frons slightly convex; punctures 0.5 – 0.8 times as large as these on clypeus, 1 – 2 diameters apart; interspaces smooth and shiny. Antenna 10 - segmented (Fig. 3); antennal club small, transverse, diameter at broadest point about 0.3 length of pronotum. Pronotum transverse, length 0.45 – 0.50 times width, widest at base, weakly narrowing anteriorly; anterior angles blunt; anterior margin arcuate at middle; lateral sides weakly curved, lateral carina smooth with complete but narrow bead entirely visible from above; pronotal base arcuate not distinctly prominent medially, slightly overlapping scutellum; prothoracic hypomeron concave but without delimited cavity (Fig. 6). Disc convex, punctures small, mostly as large as those on frons or slightly smaller, 2 – 3 diameters apart, interspaces smooth and shiny. Scutellum as broad as long, triangular, glabrous. Elytra about 1.1 – 1.2 times longer than wide, widest at basal third, jointly rounded apically; margins narrow, invisible at apical fifth from above. Elytron without striae, surfaces with fine irregular punctures (Fig. 4), punctures as large or slightly larger than those on pronotum 1 – 3 diameters apart; interspaces smooth, shiny. Femora and tibiae broad (Fig. 5, 7). Aedeagus with weakly asymmetrical tegmen and penis with fused basal struts (Fig. 8).	en	Ślipiński, Adam (2020): A new species of Euxestoxenus Arrow (Coleoptera: Euxestidae) from Thailand. Insecta Mundi 2020 (838): 1-4, DOI: http://doi.org/10.5281/zenodo.5353899
6B4E344DFFACFFFFFF23FE69FA34FAD2.taxon	materials_examined	Material examined. Holotype: “ Thailand, Chiang Rai, 10 km W Wiang Pa Pao, Ban Huay Ya Sal, 780 m, 28. i. 1988, P. Schwendinger ” (MHNG). Paratypes; “ Lampoon [Lamphun?], 16. viii. 1979, pied arbre, J. Roberts ” (4, MHNG; 2, ANIC).	en	Ślipiński, Adam (2020): A new species of Euxestoxenus Arrow (Coleoptera: Euxestidae) from Thailand. Insecta Mundi 2020 (838): 1-4, DOI: http://doi.org/10.5281/zenodo.5353899
6B4E344DFFACFFFFFF23FE69FA34FAD2.taxon	etymology	Etymology. The species is named after the late Dr. Michael C. Thomas for his contributions to beetle taxonomy.	en	Ślipiński, Adam (2020): A new species of Euxestoxenus Arrow (Coleoptera: Euxestidae) from Thailand. Insecta Mundi 2020 (838): 1-4, DOI: http://doi.org/10.5281/zenodo.5353899
